Audio mixer



FIG. 1 is a perspective view of an audio mixer showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged view of a portion of the FIG. 1 perspective view.

The dashed broken lines in the drawings depict portions of the audio mixer that form no part of the claimed design. The dot-dash broken in FIG. 1, which encircles portions of the audio mixer in FIG. 1 that are illustrated in enlarged view in FIG. 8, forms no part of the claimed design. 

CLAIM The ornamental design for an audio mixer, as shown and described. 